Patents by Inventor Kenji Kawato

Kenji Kawato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7085060
    Abstract: Plural diffusion patterns are formed on a light-incident surface of an optical film, while plural prisms are formed on a light-emitting surface. The diffusion patterns have, in at least one section thereof, a main inclined surface that is curved face with a relatively small inclination and an auxiliary inclined surface that is oppositely inclined to the main inclined surface with a relatively large inclination.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: August 1, 2006
    Assignee: Omron Corporation
    Inventors: Motohiko Matsushita, Akihiro Funamoto, Shigeru Aoyama, Yuki Matsui, Kenji Kawato
  • Publication number: 20040105157
    Abstract: The present invention provides an optical film having a diffusion pattern that can diffuse light and direct at least a part of incident light vertically to the surface of the optical film. Further, the present invention provides an optical film having both a function of a prism sheet and a function of a diffusion sheet.
    Type: Application
    Filed: September 29, 2003
    Publication date: June 3, 2004
    Inventors: Motohiko Matsushita, Akihiro Funamoto, Shigeru Aoyama, Yuki Matsui, Kenji Kawato
  • Patent number: 4156551
    Abstract: Coupling means for vehicles such as rolling stock which includes railroad cars, tractors and trailers and the like which includes apparatus for automatically coupling fluid carrying pipes and electrical connectors when the tractors and trailers or other vehicles such as railroad cars are mechanically coupled.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: May 29, 1979
    Inventors: Minoru Nagase, Masao Kouzuki, Kenji Kawato, Kunitoshi Doi